Malicious PDF — malware analysis report

Static analysis result for SHA-256 d59c47137b643498…

MALICIOUS

PDF

45.2 KB Created: 2020-08-17 07:28:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 0155fd77c5e1ee7be8a3b10147ff1d9d SHA-1: 3fa1bbe92f0936be137c64055988a13677b27819 SHA-256: d59c47137b6434985a2bd876661ebd65675f10ef9f7ad5d764a96a7a575e0a83
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF was flagged by multiple critical heuristics for containing malicious redirector links and a large link farm. The embedded URL 'https://ttraff.ru/pify?keyword=adrenalina+racemica+pdf' is identified as a malicious redirector. The document body contains garbled text but also includes the same URL, suggesting it is a primary lure. The presence of numerous Shopify links, while some are benign, contributes to the overall SEO manipulation or link farm characteristic.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://ttraff.ru/pify?keyword=adrenalina+racemica+pdf In PDF document text
    • http://files.beautytechcommunity.com/uploads/1/3/1/8/131871864/lifoxopuwa.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4424/9499/files/texte_allemand_facile_avec_questions.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1657/6424/files/94649916842.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/viborovikumowenaben.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1245/4560/files/36150357210.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1460/1378/files/pokagulilujebitijim.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9276/2017/files/descargar_gratis_bestiario.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0455/8488/files/character_to_numeric_in_r.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7883/5606/files/lelijawedumatosoropewuru.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3066/5637/files/werupovalu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0754/8326/files/search_documents_in_folder.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Related samples 3

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000671b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x671B 4712 bytes
SHA-256: 03bf2ab2688034fb66a88ddba6367809eac995ea93c04fa4baffe0f4447ac923
font_01_sfnt_off000076ee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x76EE 10660 bytes
SHA-256: a0db475bc143d4e553d5f9fdee56be4dbb2a79bc98e4c69072d02f736ec4bcc9
font_02_sfnt_off00009a43.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9A43 4324 bytes
SHA-256: 9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2

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